Synopsis
The remote Ubuntu host is missing one or more security-related patches.
Description
It was discovered that curl incorrectly reused client certificates when built with NSS. A remote attacker could possibly use this issue to hijack the authentication of a TLS connection. (CVE-2016-7141)
Nguyen Vu Hoang discovered that curl incorrectly handled escaping certain strings. A remote attacker could possibly use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7167)
It was discovered that curl incorrectly handled storing cookies. A remote attacker could possibly use this issue to inject cookies for arbitrary domains in the cookie jar. (CVE-2016-8615)
It was discovered that curl incorrect handled case when comparing user names and passwords. A remote attacker with knowledge of a case-insensitive version of the correct password could possibly use this issue to cause a connection to be reused. (CVE-2016-8616)
It was discovered that curl incorrect handled memory when encoding to base64. A remote attacker could possibly use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-8617)
It was discovered that curl incorrect handled memory when preparing formatted output. A remote attacker could possibly use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-8618)
It was discovered that curl incorrect handled memory when performing Kerberos authentication. A remote attacker could possibly use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-8619)
Luat Nguyen discovered that curl incorrectly handled parsing globs. A remote attacker could possibly use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-8620)
Luat Nguyen discovered that curl incorrectly handled converting dates. A remote attacker could possibly use this issue to cause curl to crash, resulting in a denial of service. (CVE-2016-8621)
It was discovered that curl incorrectly handled URL percent-encoding decoding. A remote attacker could possibly use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-8622)
It was discovered that curl incorrectly handled shared cookies. A remote server could possibly obtain incorrect cookies or other sensitive information. (CVE-2016-8623)
Fernando Munoz discovered that curl incorrect parsed certain URLs. A remote attacker could possibly use this issue to trick curl into connecting to a different host. (CVE-2016-8624).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected libcurl3, libcurl3-gnutls and / or libcurl3-nss packages.